基本都是按照书上编写的程序，但运行后火车图片不是在屏幕底部中央，而是在左上角，而且怪物群也不显示了，但并没有报错，不知道是什么原因？
import pygame
import sys
from train import Train
from setting1 import Setting
from zd import Zd
from monster import Monster
class Games:
def __init__(self):
pygame.init()
self.setting = Setting()
self.screen = pygame.display.set_mode((self.setting.screen_width,self.setting.screen_height))
pygame.display.set_caption("火车大战......")
self.train = Train(self)
self.zds = pygame.sprite.Group()
self.monsters = pygame.sprite.Group()
self._create_fleet()
def run(self):
while True:
self._event_check()
self.train.update()
self.zd_update()
self._monsters_update()
self._screen_update()
def _screen_update(self):
self.screen.fill(self.setting.bj_color)
self.train.hua()
for zd in self.zds.sprites():
zd.draw_zd()
self.monsters.draw(self.screen)
pygame.display.flip()
def _event_check(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
self._event_keydown(event)
elif event.type == pygame.KEYUP:
self._event_keyup(event)
def _event_keydown(self,event):
if event.key == pygame.K_RIGHT:
self.train.move_right = True
if event.key == pygame.K_LEFT:
self.train.move_left = True
if event.key == pygame.K_UP:
self.train.move_up = True
if event.key == pygame.K_DOWN:
self.train.move_down = True
elif event.key == pygame.K_q:
sys.exit()
elif event.key == pygame.K_SPACE:
self._fire_zd()
def _event_keyup(self,event):
if event.key == pygame.K_RIGHT:
self.train.move_right = False
if event.key == pygame.K_LEFT:
self.train.move_left = False
if event.key == pygame.K_UP:
self.train.move_up = False
if event.key == pygame.K_DOWN:
self.train.move_down = False
def _fire_zd(self):
new_zd = Zd(self)
self.zds.add(new_zd)
def _create_fleet(self):
monster = Monster(self)
m_width = monster.rect.width
m_heigth = monster.rect.height
keyong_width = self.setting.screen_width-(2 * m_width)
m_numbers = keyong_width // (2 * m_width)
keyong_heigth = self.setting.screen_height-(3*m_heigth)
m_gaos = keyong_heigth // (2 * m_heigth)
for m_gao in range(m_gaos):
for m_number in range(m_numbers):
self._create_monster(m_number,m_gao)
def _create_monster(self,m_number,m_gao):
monster = Monster(self)
m_width = monster.rect.width
m_heigth = monster.rect.height
m_x = m_width + 2 * m_width * m_number
m_y = m_heigth + 2 * m_heigth * m_gao
monster.rect.x = m_x
monster.rect.y = m_y
self.monsters.add(monster)
def zd_update(self):
self.zds.update()
for zd in self.zds.copy():
if zd.rect.bottom <= 0:
self.zds.remove(zd)
print(len(self.zds))
def _check_fleet_edges(self):
for monster in self.monsters.sprites():
if monster.check_edges:
self._change_fleet_direction()
break
def _change_fleet_direction(self):
for monster in self.monsters.sprites():
monster.rect.y += self.setting.fleet_drop_speed
self.setting.fleet_direction *= -1
def _monsters_update(self):
self._check_fleet_edges()
self.monsters.update()
if __name__ == "__main__":
a = Games()
a.run()
class Setting:
def __init__(self):
self.screen_height = 830
self.screen_width = 1300
self.bj_color = (246,246,246)
self.train_speed = 1.0
self.zd_gao = 15
self.zd_kuan = 3
self.zd_color = (255,0,0)
self.zd_speed = 1.0
self.monster_speed = 1.0
self.fleet_drop_speed = 10
self.fleet_direction = 1
import pygame
class Train:
def __init__(self,ab):
self.screen = ab.screen
self.setting =ab.setting
self.screen_rect = ab.screen.get_rect()
self.image = pygame.image.load('C:/Users/xcz000/Desktop/My Python/images/train.bmp')
self.rect = self.image.get_rect()
self.x = float(self.rect.x)
self.y = float(self.rect.y)
self.rect.midbottom = self.screen_rect.midbottom
self.move_right = False
self.move_left = False
self.move_up = False
self.move_down = False
def hua(self):
self.screen.blit(self.image,self.rect)
def update(self):
if self.move_right and self.rect.right<=self.screen_rect.right:
self.x += self.setting.train_speed
if self.move_left and self.rect.left>=0:
self.x -= self.setting.train_speed
if self.move_up and self.rect.top>=0:
self.y -= self.setting.train_speed
if self.move_down and self.rect.bottom<=self.screen_rect.bottom:
self.y += self.setting.train_speed
self.rect.x = self.x
self.rect.y = self.y
import pygame
from pygame.sprite import Sprite
class Zd(Sprite):
def __init__(self,ab):
super().__init__()
self.screen = ab.screen
self.setting = ab.setting
self.bj_color = self.setting.zd_color
self.rect = pygame.Rect(0,0,self.setting.zd_kuan,self.setting.zd_gao)
self.rect.midtop = ab.train.rect.midtop
self.y = float(self.rect.y)
def update(self):
self.y -= self.setting.zd_speed
self.rect.y = self.y
def draw_zd(self):
pygame.draw.rect(self.screen,self.bj_color,self.rect)
```python
import pygame
from pygame.sprite import Sprite
class Monster(Sprite):
def __init__(self,ab):
super().__init__()
self.screen = ab.screen
self.image = pygame.image.load('C:/Users/xcz000/Desktop/My Python/images/baby.bmp')
self.rect = self.image.get_rect()
self.setting = ab.setting
self.rect.x = self.rect.width
self.rect.y = self.rect.height
self.x = float(self.rect.x)
def check_edges(self):
if self.rect.left <= 0 or self.rect.right >= self.screen.rect.right:
return True
def update(self):
self.x += self.setting.monster_speed * self.setting.fleet_direction
self.rect.x = self.x
```
